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A shopkeeper has a weighing balance containing two iron plates on both sides.

but this weighing balance is defective.

one plate is 10 % shorter than the another one

he sells apples for rs 27 per kg

he puts 1 kg bar on the smaller plate and apples on the other side.

Determine the cost price of the apples for the shopkeeper when he faces neither gain nor loss on this transaction.

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